Uhg! Sorry to hear about the Naso!
There are always risks with any major changes though. It is unavoidable.
Thanks Bax,
You are so right. There is always some kind of risk to just about everything you do when it comes to reefing.
I hesitated for a long time undertaking this project fearing that I might lose a few corals along the way. I've found out over the years that some corals just don't like to be moved.
Just never expected to lose a fish from doing a rescape.
Good to get an honest opinion on led lighting. Im going to hold to my halides and t5, lucky I never got buyers yet for them. Is plasma units worth buying?
Hey zaheda,
You never know, you might get lucky and buy the first LED fixture that actually lives up to all the hype they sell them with.
There are a lot of factors and personal preferences that go into deciding whether a certain type of lighting is "worth buying" IMO. As with any lighting source, Plasmas have their pros and cons. Plasmas are very much like running 400w MHs. The main difference being that they are dimmable, change colors when you dim them, less heat, less power consumption. I personally think that if someone would somehow come up with a design that is more of a pendant look, something that looks a little more elegant hanging over your tank, they would sell a lot more. Especially with the whole open top rimless craze that is so very popular today.
I honestly love how well Plasmas have performed for me so far. My corals have responded very well to them. They seem to be competing with my 400w MHs just fine so far. In hind sight I wish that I would have bought Plasmas instead of the LEDs. (Although the Plasmas weren't available to the public back then).
Recently when my Plasmas passed the two year old mark I called up Seashine to inquire about purchasing new bulbs for them. I was interested to compare new bulbs with ones that I that I had been running for two years. I found out that they had changed the design of the bulbs since the time I had purchased mine. The newer bulbs are slightly larger in size, now mount horizontally, and they're in a newer larger reflector. Seashine was very generous, made me a hell of a deal on changing out my old bulbs and reflectors to the newer style. I think partly because I was a very early customer when they first came out to the public. I changed them out two at a time, so it was interesting to see the two year old ones hanging side by side with new ones. The new ones were definitely visually brighter but it's hard to say if that is because of the new bulb and reflector design or because of the decline of the old bulbs or as I suspect, both. Not a really fair comparison, beings it was not really apples to apples. Either way, all said now to date, I've spent the same money for Plasmas as I did on LEDs, two years later my Plasmas still work like new (maybe even better).
Thanks for the updates RS. I always look forward to them! Very interesting to read about your experience thinning/relocating your acros. Shows we still have so much to learn about them. Sometimes it seems that they are masters of survival growing toward light and flow until they flourish. Other times they STN just because of a change in the flow within the same tank. This is why we love them though!
Keep the photos and updates coming! Thanks for sharing!
Thank you for the kind words veloboy,
I totally agree. Sometimes these corals can be extremely tough and other times go up in flames from what seems like the slightest little change.
You gotta love em.
Wow your tank is such an inspiration. The growth and size of your corals is outstanding. It gives us newer reefers something to look up to and try and immulate. Such a beautiful tank. Happy reefing :thumbsup:
Thank you aandfsoccr04,
I'm really glad I could pass on some of that inspiration that so many others have given me along the way. I was once a newer reefer myself not too long ago. (it really doesn't seem like too long ago)
Time flies fast, one minute you're obsessing over placing little tiny frags in your tank, thinking how bare it looks, wondering when they're finally gonna start growing, and the next thing you know your corals are huge, overgrown, and you are trying to decide which one to chop or get rid of.
Always a work in progress..
Thanks Steve,
these are definitely useful observations since most people are constantly tweaking their setup and introducing so many new variables that it is hard to know what is really happening.
I think your guesses (reduced PAR and/or spectral shift in the Luxeon emitters after two years in service) are the only logical explanations I could think of as well. I know the Luxeons were considered some of the best LEDs available at the time the Solaris was being produced and had relatively good lumen maintenance characteristics. So, perhaps it had to do with shortcomings relating to cooling design which caused early degradation. It is possible that the power supply output was diminished as well over time, but I think that may be less likely.
Whatever the cause, these are definitely important observations to keep in mind for anyone running LEDs.
I have had my LEDs running for almost 3 years. So far everything seems fine, but perhaps I should be renewing the emitters on at least one of my pendents in efforts to detect any degradation of the original units. At least this will give me a better idea of the real world replacement intervals.
-Robert
Hey Santoki,
I'm really glad to hear that you've had three years of success with the same LEDs. This really gives me some hope that there are some LEDs out there that do last a lot longer. I've seen a few tanks that claim to have been grown for three or more years
under LEDs but they have changed to different fixtures sometime along the way. I would really be interested to hear about your observations when and if you decide to change out some of your now three year old emitters. Would be very interesting to hear about your observations as to differences you find such as par or spectrum differences even though you have only had them running for less than a quarter of their supposed life span, especially if you decide to run the old and the new ones side by side for a while.
As far as the Solaris design, I honestly don't know how they could have done a better job at cooling them. They ran (4) temperature controlled, variable speed fans in each of my fixtures (two in, two out), the fixture temp is always shown on the controller display, the emitters automatically shut off if the temp ever gets too high, and they used the same aluminum heat sinks everyone else still seems to be using. Besides the fact that the weather is always cool here where I live. I've never noticed any difference in the power sources whether old or new. They would just be either on or off.
A lot of people are watching the Vivid Aquarium half LED, half MH tank right now. They are seeing how corals are doing side by side in the same tank, under each type of lighting.
This was pretty much how my personal experiment went back in 2009. The results Vivid is reporting for the current time they've had them is pretty much the same results I was getting also. It will be interesting to see if Vivid still has the same
original LED fixtures over their tank three to four years from now and how well they are doing. Much less that, so far, fantasized ten years.
Reef on!